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DAC5675IPHPG4 Datasheet(PDF) 2 Page - Texas Instruments |
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DAC5675IPHPG4 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 31 page DAC5675 SLAS352C − DECEMBER 2001 − REVISED AUGUST 2004 2 www.ti.com DESCRIPTION (continued) The DAC5675 has been specifically designed for a differential transformer coupled output with a 50- Ω doubly terminated load. With the 20-mA full-scale output current, both a 4:1 impedance ratio (resulting in an output power of 4 dBm) and 1:1 impedance ratio transformer (-2 dBm) is supported. The last configuration is preferred for optimum performance at high output frequencies and update rates. The output voltage compliance ranges from 2.15 V to AVDD + 0.03 V. An accurate on-chip 1.2-V temperature compensated bandgap reference and control amplifier allows the user to adjust this output current from 20 mA down to 2 mA. This provides 20-dB gain range control capabilities. Alternatively, an external reference voltage may be applied. The DAC5675 features a SLEEP mode, which reduces the standby power to approximately 150 mW. The DAC5675 is available in a 48-pin HTQFP thermally enhanced PowerPad package. This package increases thermal efficiency in a standard size IC package. The device is characterized for operation over the industrial temperature range of −40 °C to 85°C. 14 15 D0B D0A D1B D1A D2B D2A D3B D3A D4B D4A D5B D5A 36 35 34 33 32 31 30 29 28 27 26 25 16 1 2 3 4 5 6 7 8 9 10 11 12 D13A D13B D12A D12B D11A D11B D10A D10B D9A D9B D8A D8B 17 18 19 20 47 46 45 44 43 48 42 40 39 38 41 21 22 23 24 37 13 PHP PACKAGE (TOP VIEW) AVAILABLE OPTIONS TA PACKAGED DEVICE TA 48-HTQFP PowerPAD PLASTIC QUAD FLATPACK −40 °C to 85°C DAC5675IPHP −40 °C to 85°C DAC5675IPHPR |
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